Ratchet wrench



FIG. 1 is a top plan view of a ratchet wrench showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a typical side elevation view thereof;

FIG. 4 is a left end elevation view thereof; and

FIG. 5 is a right end elevation view thereof. 

The ornamental design for a ratchet wrench, as shown. 